Merge pull request #1328 from o1-labs/dw/use-previous-nightly-rust

CI: use a previous version of nightly

Author: dannywillems

.github/actions/setup-wasm/action.yml

@@ -4,7 +4,8 @@ inputs:
   toolchain:
     description: 'Rust toolchain version'
     required: false
-    default: 'nightly'
+    # FIXME: set to nightly when https://github.com/rust-lang/rust/issues/145652
+    default: 'nightly-2025-08-18'
   wasm-bindgen-version:
     description: 'wasm-bindgen-cli version'
     required: false
@@ -31,4 +32,4 @@ runs:
     - name: Setup Rust Cache
       uses: Swatinem/rust-cache@v2
       with:
-        prefix-key: ${{ inputs.cache-prefix }}
+        prefix-key: ${{ inputs.cache-prefix }}

Makefile

@@ -1,7 +1,7 @@
 # OpenMina Makefile
 
 # Rust
-NIGHTLY_RUST_VERSION = "nightly"
+NIGHTLY_RUST_VERSION = "nightly-2025-08-18"
 
 # Docker
 DOCKER_ORG ?= openmina
@@ -86,7 +86,7 @@ build-vrf: ## Build the VRF package
 
 .PHONY: build-wasm
 build-wasm: ## Build WebAssembly node
-	@cd node/web && cargo +nightly build \
+	@cd node/web && cargo +${NIGHTLY_RUST_VERSION} build \
 		--release --target wasm32-unknown-unknown
 # Update ./.gitignore accordingly if the out-dir is changed
 	@wasm-bindgen --keep-debug --web \